流纹质凝灰岩
- 网络rhyolitic tuff
流纹质凝灰岩-
主要岩石类型有玄武岩、高铝玄武岩、高钾安山岩、英安岩、流纹岩及流纹质角砾凝灰岩。
The volcanic rocks mainly include basalt , high-Al basalt , andesite , dacite , rhyolite and / or rhyolitic pyroclastic rocks .
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广东海南岛石碌铁矿富钾流纹质熔结凝灰岩的发现及其意义
Discovery of potassium-rich rhyolitic ignimbrite in the Shilu iron ore deposits of Hainan Island and its significance
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石英晶屑内熔融包裹体发育。峨嵋矿区矿体赋存于流纹质晶屑凝灰岩、熔结凝灰岩、含火山角砾（集块）凝灰岩中。
A great mumber of melt inclusions are there in the quartz phenocrysts . The ore bodies of Emei pyrophyllite are located in rhyolitic crys-tal fragment tuff , ignimbrite and volcanic breccia ( agglomerate ) - bearing tuff .